The Universe. Our Solar System. Neptune.

Galileo discovery Neptune on December 28, 1612.
Neptune is the eighth and farthest planet from the Sun in the Solar System.
Neptune is 17 times the mass of the Eart.
Neptune is similar to Uranus.
The interior of Neptune, like that of Uranus.
One difference between Neptune and Uranus is the typical level of meteorological activity.
The average distance between Neptune and the Sun is 4.50 billion km
Neptune has 13 moons.
Neptune's second satellite, by order of discovery
At high altitudes, Neptune's atmosphere is 80% hydrogen.
In the wake of the discovery, there was much nationalistic rivalry between the French and the British over who had priority